refactor: move position/movement related components into systems/movement

src/entity/graph.rs

@@ -1,6 +1,6 @@
 use glam::Vec2;
 
-use crate::systems::components::NodeId;
+use crate::systems::movement::NodeId;
 
 use super::direction::Direction;
 

src/game/mod.rs

@@ -8,12 +8,13 @@ use crate::error::{GameError, GameResult, TextureError};
 use crate::events::GameEvent;
 use crate::map::builder::Map;
 use crate::systems::blinking::Blinking;
+use crate::systems::movement::{Movable, MovementState, Position};
 use crate::systems::{
     blinking::blinking_system,
     collision::collision_system,
     components::{
-        Collider, CollisionLayer, DeltaTime, DirectionalAnimated, EntityType, GlobalState, ItemBundle, ItemCollider, Movable,
-        MovementState, PacmanCollider, PlayerBundle, PlayerControlled, Position, Renderable, Score, ScoreResource,
+        Collider, CollisionLayer, DeltaTime, DirectionalAnimated, EntityType, GlobalState, ItemBundle, ItemCollider,
+        PacmanCollider, PlayerBundle, PlayerControlled, Renderable, Score, ScoreResource,
     },
     control::player_system,
     input::input_system,

src/map/builder.rs

@@ -4,7 +4,7 @@ use crate::entity::direction::Direction;
 use crate::entity::graph::{Graph, Node, TraversalFlags};
 use crate::map::parser::MapTileParser;
 use crate::map::render::MapRenderer;
-use crate::systems::components::NodeId;
+use crate::systems::movement::NodeId;
 use crate::texture::sprite::SpriteAtlas;
 use bevy_ecs::resource::Resource;
 use glam::{IVec2, Vec2};

src/systems/collision.rs

@@ -6,7 +6,8 @@ use bevy_ecs::system::{Query, Res};
 use crate::error::GameError;
 use crate::events::GameEvent;
 use crate::map::builder::Map;
-use crate::systems::components::{Collider, ItemCollider, PacmanCollider, Position};
+use crate::systems::components::{Collider, ItemCollider, PacmanCollider};
+use crate::systems::movement::Position;
 
 pub fn collision_system(
     map: Res<Map>,

src/systems/components.rs

@@ -1,13 +1,9 @@
 use bevy_ecs::{bundle::Bundle, component::Component, resource::Resource};
 use bitflags::bitflags;
-use glam::Vec2;
 
 use crate::{
-    entity::{
-        direction::Direction,
-        graph::{Graph, TraversalFlags},
-    },
-    error::{EntityError, GameResult},
+    entity::graph::TraversalFlags,
+    systems::movement::{Movable, MovementState, Position},
     texture::{animated::AnimatedTexture, sprite::AtlasTile},
 };
 
@@ -22,7 +18,6 @@ pub enum EntityType {
     Ghost,
     Pellet,
     PowerPellet,
-    Wall,
 }
 
 impl EntityType {
@@ -53,113 +48,6 @@ pub struct DirectionalAnimated {
     pub stopped_textures: [Option<AnimatedTexture>; 4],
 }
 
-/// A unique identifier for a node, represented by its index in the graph's storage.
-pub type NodeId = usize;
-
-/// Progress along an edge between two nodes.
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub struct EdgeProgress {
-    pub target_node: NodeId,
-    /// Progress from 0.0 (at source node) to 1.0 (at target node)
-    pub progress: f32,
-}
-
-/// Pure spatial position component - works for both static and dynamic entities.
-#[derive(Component, Debug, Copy, Clone, PartialEq)]
-pub struct Position {
-    /// The current/primary node this entity is at or traveling from
-    pub node: NodeId,
-    /// If Some, entity is traveling between nodes. If None, entity is stationary at node.
-    pub edge_progress: Option<EdgeProgress>,
-}
-
-/// Explicit movement state - only for entities that can move.
-#[derive(Component, Debug, Clone, Copy, PartialEq)]
-pub enum MovementState {
-    Stopped,
-    Moving { direction: Direction },
-}
-
-/// Movement capability and parameters - only for entities that can move.
-#[derive(Component, Debug, Clone, Copy)]
-pub struct Movable {
-    pub speed: f32,
-    pub current_direction: Direction,
-    pub requested_direction: Option<Direction>,
-}
-
-impl Position {
-    /// Calculates the current pixel position in the game world.
-    ///
-    /// Converts the graph position to screen coordinates, accounting for
-    /// the board offset and centering the sprite.
-    ///
-    /// # Errors
-    ///
-    /// Returns an `EntityError` if the node or edge is not found.
-    pub fn get_pixel_pos(&self, graph: &Graph) -> GameResult<Vec2> {
-        let pos = match &self.edge_progress {
-            None => {
-                // Entity is stationary at a node
-                let node = graph.get_node(self.node).ok_or(EntityError::NodeNotFound(self.node))?;
-                node.position
-            }
-            Some(edge_progress) => {
-                // Entity is traveling between nodes
-                let from_node = graph.get_node(self.node).ok_or(EntityError::NodeNotFound(self.node))?;
-                let to_node = graph
-                    .get_node(edge_progress.target_node)
-                    .ok_or(EntityError::NodeNotFound(edge_progress.target_node))?;
-
-                // For zero-distance edges (tunnels), progress >= 1.0 means we're at the target
-                if edge_progress.progress >= 1.0 {
-                    to_node.position
-                } else {
-                    // Interpolate position based on progress
-                    from_node.position + (to_node.position - from_node.position) * edge_progress.progress
-                }
-            }
-        };
-
-        Ok(Vec2::new(
-            pos.x + crate::constants::BOARD_PIXEL_OFFSET.x as f32,
-            pos.y + crate::constants::BOARD_PIXEL_OFFSET.y as f32,
-        ))
-    }
-}
-
-impl Default for Position {
-    fn default() -> Self {
-        Position {
-            node: 0,
-            edge_progress: None,
-        }
-    }
-}
-
-#[allow(dead_code)]
-impl Position {
-    /// Returns `true` if the position is exactly at a node (not traveling).
-    pub fn is_at_node(&self) -> bool {
-        self.edge_progress.is_none()
-    }
-
-    /// Returns the `NodeId` of the current node (source of travel if moving).
-    pub fn current_node(&self) -> NodeId {
-        self.node
-    }
-
-    /// Returns the `NodeId` of the destination node, if currently traveling.
-    pub fn target_node(&self) -> Option<NodeId> {
-        self.edge_progress.as_ref().map(|ep| ep.target_node)
-    }
-
-    /// Returns `true` if the entity is traveling between nodes.
-    pub fn is_moving(&self) -> bool {
-        self.edge_progress.is_some()
-    }
-}
-
 bitflags! {
     #[derive(Component, Default, Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
     pub struct CollisionLayer: u8 {

src/systems/control.rs

@@ -8,7 +8,8 @@ use bevy_ecs::{
 use crate::{
     error::GameError,
     events::{GameCommand, GameEvent},
-    systems::components::{GlobalState, Movable, PlayerControlled},
+    systems::components::{GlobalState, PlayerControlled},
+    systems::movement::Movable,
 };
 
 // Handles player input and control

src/systems/movement.rs

@@ -1,9 +1,119 @@
-use crate::entity::graph::Edge;
-use crate::error::{EntityError, GameError};
+use crate::entity::graph::Graph;
+use crate::entity::{direction::Direction, graph::Edge};
+use crate::error::{EntityError, GameError, GameResult};
 use crate::map::builder::Map;
-use crate::systems::components::{DeltaTime, EdgeProgress, EntityType, Movable, MovementState, Position};
+use crate::systems::components::{DeltaTime, EntityType};
+use bevy_ecs::component::Component;
 use bevy_ecs::event::EventWriter;
 use bevy_ecs::system::{Query, Res};
+use glam::Vec2;
+
+/// A unique identifier for a node, represented by its index in the graph's storage.
+pub type NodeId = usize;
+
+/// Progress along an edge between two nodes.
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub struct EdgeProgress {
+    pub target_node: NodeId,
+    /// Progress from 0.0 (at source node) to 1.0 (at target node)
+    pub progress: f32,
+}
+
+/// Pure spatial position component - works for both static and dynamic entities.
+#[derive(Component, Debug, Copy, Clone, PartialEq)]
+pub struct Position {
+    /// The current/primary node this entity is at or traveling from
+    pub node: NodeId,
+    /// If Some, entity is traveling between nodes. If None, entity is stationary at node.
+    pub edge_progress: Option<EdgeProgress>,
+}
+
+/// Explicit movement state - only for entities that can move.
+#[derive(Component, Debug, Clone, Copy, PartialEq)]
+pub enum MovementState {
+    Stopped,
+    Moving { direction: Direction },
+}
+
+/// Movement capability and parameters - only for entities that can move.
+#[derive(Component, Debug, Clone, Copy)]
+pub struct Movable {
+    pub speed: f32,
+    pub current_direction: Direction,
+    pub requested_direction: Option<Direction>,
+}
+
+impl Position {
+    /// Calculates the current pixel position in the game world.
+    ///
+    /// Converts the graph position to screen coordinates, accounting for
+    /// the board offset and centering the sprite.
+    ///
+    /// # Errors
+    ///
+    /// Returns an `EntityError` if the node or edge is not found.
+    pub fn get_pixel_pos(&self, graph: &Graph) -> GameResult<Vec2> {
+        let pos = match &self.edge_progress {
+            None => {
+                // Entity is stationary at a node
+                let node = graph.get_node(self.node).ok_or(EntityError::NodeNotFound(self.node))?;
+                node.position
+            }
+            Some(edge_progress) => {
+                // Entity is traveling between nodes
+                let from_node = graph.get_node(self.node).ok_or(EntityError::NodeNotFound(self.node))?;
+                let to_node = graph
+                    .get_node(edge_progress.target_node)
+                    .ok_or(EntityError::NodeNotFound(edge_progress.target_node))?;
+
+                // For zero-distance edges (tunnels), progress >= 1.0 means we're at the target
+                if edge_progress.progress >= 1.0 {
+                    to_node.position
+                } else {
+                    // Interpolate position based on progress
+                    from_node.position + (to_node.position - from_node.position) * edge_progress.progress
+                }
+            }
+        };
+
+        Ok(Vec2::new(
+            pos.x + crate::constants::BOARD_PIXEL_OFFSET.x as f32,
+            pos.y + crate::constants::BOARD_PIXEL_OFFSET.y as f32,
+        ))
+    }
+}
+
+impl Default for Position {
+    fn default() -> Self {
+        Position {
+            node: 0,
+            edge_progress: None,
+        }
+    }
+}
+
+#[allow(dead_code)]
+impl Position {
+    /// Returns `true` if the position is exactly at a node (not traveling).
+    pub fn is_at_node(&self) -> bool {
+        self.edge_progress.is_none()
+    }
+
+    /// Returns the `NodeId` of the current node (source of travel if moving).
+    pub fn current_node(&self) -> NodeId {
+        self.node
+    }
+
+    /// Returns the `NodeId` of the destination node, if currently traveling.
+    pub fn target_node(&self) -> Option<NodeId> {
+        self.edge_progress.as_ref().map(|ep| ep.target_node)
+    }
+
+    /// Returns `true` if the entity is traveling between nodes.
+    pub fn is_moving(&self) -> bool {
+        self.edge_progress.is_some()
+    }
+}
 
 fn can_traverse(entity_type: EntityType, edge: Edge) -> bool {
     let entity_flags = entity_type.traversal_flags();

src/systems/render.rs

@@ -1,6 +1,7 @@
 use crate::error::{GameError, TextureError};
 use crate::map::builder::Map;
-use crate::systems::components::{DeltaTime, DirectionalAnimated, Movable, MovementState, Position, Renderable};
+use crate::systems::components::{DeltaTime, DirectionalAnimated, Renderable};
+use crate::systems::movement::{Movable, MovementState, Position};
 use crate::texture::sprite::SpriteAtlas;
 use bevy_ecs::entity::Entity;
 use bevy_ecs::event::EventWriter;